TWI665660B - 用以降混至少兩聲道之降混器與方法及多聲道編碼器與多聲道解碼器 - Google Patents

用以降混至少兩聲道之降混器與方法及多聲道編碼器與多聲道解碼器 Download PDF

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Publication number
TWI665660B
TWI665660B TW106138444A TW106138444A TWI665660B TW I665660 B TWI665660 B TW I665660B TW 106138444 A TW106138444 A TW 106138444A TW 106138444 A TW106138444 A TW 106138444A TW I665660 B TWI665660 B TW I665660B
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Taiwan
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signal
channel
channels
complementary
weighting factor
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TW106138444A
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English (en)
Chinese (zh)
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TW201830378A (zh
Inventor
克里斯汀 包瑞斯
伯納德 艾德勒
古拉米 福契斯
珍恩 布特
薩斯洽 迪斯曲
佛羅瑞 吉西多
史蒂芬 拜爾
馬庫斯 穆爾特斯
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弗勞恩霍夫爾協會
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Amplifiers (AREA)
TW106138444A 2016-11-08 2017-11-07 用以降混至少兩聲道之降混器與方法及多聲道編碼器與多聲道解碼器 TWI665660B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
??16197813.5 2016-11-08
EP16197813 2016-11-08
PCT/EP2017/077820 WO2018086946A1 (en) 2016-11-08 2017-10-30 Downmixer and method for downmixing at least two channels and multichannel encoder and multichannel decoder
??PCT/EP2017/077820 2017-10-30

Publications (2)

Publication Number Publication Date
TW201830378A TW201830378A (zh) 2018-08-16
TWI665660B true TWI665660B (zh) 2019-07-11

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TW106138444A TWI665660B (zh) 2016-11-08 2017-11-07 用以降混至少兩聲道之降混器與方法及多聲道編碼器與多聲道解碼器

Country Status (17)

Country Link
US (3) US10665246B2 (de)
EP (2) EP3748633B1 (de)
JP (3) JP6817433B2 (de)
KR (1) KR102291792B1 (de)
CN (2) CN110419079B (de)
AR (1) AR110147A1 (de)
AU (1) AU2017357452B2 (de)
CA (1) CA3045847C (de)
ES (2) ES2830954T3 (de)
MX (1) MX387555B (de)
MY (1) MY198762A (de)
PL (2) PL3748633T3 (de)
PT (1) PT3539127T (de)
RU (1) RU2727861C1 (de)
TW (1) TWI665660B (de)
WO (1) WO2018086946A1 (de)
ZA (1) ZA201903536B (de)

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EP4202921B1 (de) 2020-09-28 2026-04-08 Samsung Electronics Co., Ltd. Audiocodierungsvorrichtung sowie audiodecodierungsvorrichtung
EP4738346A1 (de) * 2020-12-02 2026-05-06 Dolby International AB Immersive sprach- und audiodienste (ivas) mit adaptiven downmix-strategien
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Also Published As

Publication number Publication date
AU2017357452B2 (en) 2020-12-24
EP3539127B1 (de) 2020-09-02
ZA201903536B (en) 2021-04-28
US11183196B2 (en) 2021-11-23
JP6817433B2 (ja) 2021-01-20
CN116741185A (zh) 2023-09-12
AR110147A1 (es) 2019-02-27
PL3748633T3 (pl) 2025-11-24
US20200243096A1 (en) 2020-07-30
US10665246B2 (en) 2020-05-26
WO2018086946A1 (en) 2018-05-17
EP3748633C0 (de) 2025-07-16
EP3748633A1 (de) 2020-12-09
TW201830378A (zh) 2018-08-16
JP2021060610A (ja) 2021-04-15
CN110419079B (zh) 2023-06-27
JP7210530B2 (ja) 2023-01-23
CN110419079A (zh) 2019-11-05
RU2727861C1 (ru) 2020-07-24
AU2017357452A1 (en) 2019-06-27
JP2019537057A (ja) 2019-12-19
ES2830954T3 (es) 2021-06-07
EP3748633B1 (de) 2025-07-16
PL3539127T3 (pl) 2021-04-19
PT3539127T (pt) 2020-12-04
MY198762A (en) 2023-09-25
EP3539127A1 (de) 2019-09-18
JP2023052322A (ja) 2023-04-11
CA3045847C (en) 2021-06-15
BR112019009424A2 (pt) 2019-07-30
US20190272833A1 (en) 2019-09-05
US20220068284A1 (en) 2022-03-03
US11670307B2 (en) 2023-06-06
KR20190072653A (ko) 2019-06-25
CA3045847A1 (en) 2018-05-17
JP7621396B2 (ja) 2025-01-24
KR102291792B1 (ko) 2021-08-20
ES3042934T3 (en) 2025-11-24
MX2019005214A (es) 2019-06-24
MX387555B (es) 2025-03-18

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